单选题When it comes to the slowing economy, Ellen Spiro isn't biting her nails just yet. But the 47-year-old manicurist isn't cutting, filing or polish, ag as many nails as she'd like to, either. Most of her clients spend $ 12 to $ 50 weekly, but last month two longtime customers suddenly stopped showing up. Spero blames the softening economy. "I' m a good economic indicator," she says. "I provide a service that people can do without when they' re concerned about saving some dollars." So Spero is downscaling, shopping at middle-brow Dillard's department store near her suburban Cleveland home, instead of Neiman Marcus. "I don't know if other clients are going to abandon me, too," she says: Even before Alan Greenspan's admission that America's red-hot economy is cooling, lots of working folks had already seen signs of the slowdown themselves. From car dealerships to gap out- lets, sales have been lagging for months as shoppers temper their spending'. For retailers, who last year took in 24 percent of their revenue between Thanksgiving and Christmas, the cautious approach is coming at a crucial time. Already, experts say, holiday sales are off 7 percent from last year's pace. But don't sound any alarms just yet. Consumers seem only mildly concerned, not panicked, and many say they remain optimistic about the economy's long-term prospects even as they do some modest belt-tightening. Consumers say they're not in despair because, despite the dreadful headlines, their own for- tunes still feel pretty good. Home prices are holding steady in most regions. In Manhattan, "there's a new gold rush happening in the $4 million to $10 million range, predominantly fed by Wall Street bonuses," says broker Barbara Corcoran. to San Francisco, prices are still rising even as frenzied overbidding quiets. "Instead of 20 to 30 Offers, now maybe you only get two or three," says John Tealdi, a Bay Area real-estate broker. And most folks still feel pretty comfortable about their ability to find and keep a job. Many folks see silver linings to this slowdown. Potential home buyers would cheer for lower interest rates. Employers wouldn't mind a little fewer bubbles in the job market. Many consumers seem to have been influenced by stock-market swings, which investors now view as a necessary ingredient to a sustained boom. Diners might see an upside, too. Getting a table at Manhattan's hot new Alain Ducasse restaurant used to be impossible. Not anymore. For that, Greenspan & Co. may still be worth toasting.

单选题He is very tired. He needs ______.

单选题Angles of less than 90° are called ______angles.

单选题Recent legal research indicated that incorrect identification is a major factor in many miscarriages of justices. It also suggests that identification of people by witnesses in courtroom is not as 21 as commonly believed. Recent studies do not support the degree of judges, jurors, lawyers and the police have in eyewitness evidence. The Law Commission recently published an educational paper, "Total Recall? The Reliability of Witness 22 ", as a companion guide to a proposed code of evidence. The paper finds that commonly held perceptions about how our minds work and how well we remember are often wrong. But while human memory is 23 change, it should not be underestimated. In court witnesses are asked to give evidence about events, and judges and juries assess its Fallibility. The paper points out that memory is complex, and reliability of any person's recall must be assessed 24 . Both common sense and research say memory declines over time. The accuracy of recall and recognition are 25 their best immediately after encoding the information, declining at first rapidly, then gradually. The longer the delay, the more likely it is that information obtained after the event will interfere 26 the original memory, which reduces accuracy. The paper says 27 interviews or media reports can create such distortions. "People are particularly susceptible to having their memories 28 when the passage of time allows the original memory to fade, and will be most susceptible if they repeat the 29 as fact." Witnesses may see or read information after the event, then integrate it to produce something 30 than what was experienced, significantly reducing the reliability of their memory of an event or offender, "Further, witnesses may strongly believe in their memories, even though aspects of those memories are verifiably false./

单选题The newly elected leader has declared his intention of cleaning ______ the civil administrative organs. A. down B. off C. up D. out

单选题The picture is______, please straighten it.

单选题The fire was finally brought under control, but not ______ extensive damage had been caused. A. before B. since C. after D. as

单选题Alice came back from her trip, ______the house completely deserted.

单选题The scholarship is open to all the students______race or sex.

单选题As Facebook dominates the news with its initial public offering, activists are seizing the moment to pressure the company to add some estrogen and ethnicity to its white-male board. A women's rights group called Ultraviolet, which has been running an online petition that claims to have attracted more than 50,000 signatures, is escalating its push, posting a new YouTube video called "Do Women Have a Future at Facebook?". The video shows photos of successful women such as Hillary Clinton getting their heads cropped off the replaced with the smiling face of Facebook founder Mark Zuckerberg. "Facebook has grown off the backs of women, who make up the majority of its users and are responsible for the majority of sharing and fan activity on the site," the group says in a blurb accompanying the video. An all-male board, the group says, is "not just wrong, it's bad for business". A related campaign, called Face It, criticizes the lack of ethnic diversity on the seven-member board. "Seven white men: That's ridiculous," the group says on its homepage, along side headshots of the men. The campaign, which lists dozens of human-rights groups and corporate executives as supporters, also has its own YouTube video. Called "Face it, Facebook" , the video cites a recent Zuckerberg letter to investors that says: " Facebook was not originally created to be a company. It was built to accomplish a social mission—to make the world more open and connected. " That message is at odds with the pale-faced board, activists say. Susan Stautberg, co-chairwoman of Women Corporate Directors, an organization for female corporate board members, says Zuckerberg's thinking is flawed. " If you're trying to expand a company globally, then you want someone on the board who has built a global brand," she says. "Most of these guys on Facebook's board all have the same skills—they're mostly from Silicon Valley and Washington. You want someone who has worked in China and India and rising markets. You want someone who has marketed to women. When you're putting together a board, you don't want your best friends, you want the best people. " Having zero female directors does not appear to be a good business plan, research shows. Companies with women on the board perform substantially better than companies with all-mall boards, according to a 2011 study of Fortune 500 companies conducted by the research group Catalyst. The study showed that over the course of four to five years, companies with three or more female board members, on average, outperformed companies with no female board members by 84 percent when it came to return on sales and by 60 percent when it came to return on invested capital. Facebook may secretly be on the lookout for a female board member, according to a recent Bloomberg report. Citing unnamed sources, Bloomberg said Facebook had enlisted the corporate-recruitment firm Spencer Stuart to help seek some diversity. Spencer Stuary says it does not comment on clients due to confidentiality agreements.

单选题Some American colleges are state-supported, others are privately ______, and still others are supposed by religious organizations. A. ensured B. attributed C. authorized D. endowed

单选题I hope my students will allow a ______ for error correction.

单选题In the same way, children learning to do all the other things they learn to do without being taught—to walk, run, climb, whistle, ride a bicycle—compare their own performances with that of more skilled people, and slowly make the needed changes .

单选题{{B}}Passage Two{{/B}} Sometimes opponents of capital punishment horrify with tales of lingering death on the gallows, of faulty electric chairs, or of agony in the gas chamber. Partly in response to such protests, several states such as North Carolina and Texas switched to execution by lethal injection. The condemned person is put to death painlessly, without ropes, voltage, bullets, or gas. Did this answer the objections of death penalty opponents? Of course not. On June 22, 1984, The New York Times published an editorial that sarcastically attacked the new "hygienic" method of death by injection, and stated that "execution can never be made humane through science." So it's not the method that really troubles opponents. It's the death itself they consider barbaric. Admittedly, capital punishment is not a pleasant topic. However, one does not have to like the death penalty in order to support it any more than one must like radical surgery, radiation, or chemotherapy in order to find necessary these attempts at curing cancer. Ultimately we may learn how to cure cancer with a simple pill. Unfortunately, that day has not yet arrived. Today we are faced with the choice of letting the cancer spread or trying to cure it with the methods available, methods that one day will almost certainly be considered barbaric. But to give up and do nothing would be far more barbaric and would certainly delay the discovery of an eventual cure. We may not like the death penalty, but it must be available to punish crimes of cold-blooded murder, eases in which any other form of punishment would be inadequate and, therefore, unjust. If we create a society in which injustice is not tolerated, incidents of murder--the most flagrant form of injustice--will diminish.

单选题Don't meddle in my affairs, and in fact a I can handle them properly by myself.

单选题He has the______ of saying the right thing at the right time.

单选题Most of us go through life adding______to knowledge, polishing a concept here or there, doing an experiment, contributing a few leaves—or, if we are lucky, a twig—to the tree of knowledge.

单选题Did he really expect her to smile now and ______ with his plans, treat all this deception as no more than an unusual diversion?

单选题Every living thing has an inner biological clock that controls behavior. The clock works all the time even when there are no outside signs to mark the passing of time. The biological clock tells plants when to form flowers and when the flowers should open. It tells insects when to leave the protective cocoon and fly away. And it tells animals when to eat, sleep and wake. It controls body temperature, the release of some hormones and even dreams. These natural daily events are circadian rhythms. Man has known about them for thousands of years. But the first scientific observation of circadian rhythms was not made until 1729. In that year French astronomer, Jean-Jacques d'Ortous de Mairan, noted that one of his plants opened its leaves at the same time every morning, and closed them at the same time every night. The plant did this even when he kept it in a dark place all the time. Later scientists wondered about circadian rhythms in humans. They learned that man's biological clock actually keeps time with a day of a little less than 25 hours instead of the 24 hours on a man-made clock. About four years ago an American doctor, Eliot Weitzman, established a laboratory to study how our biological clock works. The people in his experiments are shut off from the outside world. They are free to listen to and live by their circadian rhythms. Dr. Weitzman hopes his research will lead to effective treatments for common sleep problems and sleep disorders caused by aging and mental illness. The laboratory is in the Monteflore Hospital in New York City. It has two living areas with three small rooms in each. The windows are covered, so no sunlight or moonlight comes in. There are no radios or television receivers. There is a control room between the living areas. It contains computers, one-way cameras and other electronic devices for observing the person in the living area. The instruments measure heartbeat, body temperature, hormones in the blood, other substances in the urine and brain waves during sleep. A doctor or medical technician is on duty in the control room 24 hours a day during an experiment They do not work the same time each day and are not permitted to wear watches, so the person in the laboratory has no idea what time it is. In the first four years of research, Dr Weitzman and his assistant have observed 16 men between the ages of 21 and 80. The men remained in the laboratory for as long as six months. Last month, a science reporter for The New York Times newspaper, Dava Sobol, became the first woman to take part in the experiment. She entered the laboratory on June 13th and stayed for 25 days. Miss Sobol wrote reports about the experiment during that time, which were published in the newspaper.